I have documented this bug elsewhere, but want to see if anyone else has any ideas.
In Tiki 4.1, when the File Gallery feature is configured to store files in the MySQL database (rather than a file directory) and the new File Gallery Quota feature is left to it's default values (or any values for that matter),...
it is no longer possible to upload a zip file and - at the same time - unzip the contents into the selected "directory". A hack to "filegallib.php" - documented in the bug tracker mentioned above - circumvents the new quota feature and allows uploading and unzipping to be restored. Uploading multiple files one at a time is broken with the hack, though.
The "filegallib.php" file in 4.1 has been changed a lot since 3.3, especially in the "process_batch_file_upload" function.
If anyone knows of a cleaner hack/fix, I'd appreciate any help.